By master mode switch from the wheelhouse panel. The main control in the wheelhouse is executed with a “master mode” switch with two modes of control. The ‘doors closed’ mode automatically re-closes the doors after they have been opened locally. (pre-warning of 5-10 seconds according to SOLAS is provided). The ‘local control’ mode allows the

doors to be opened locally without automatic reclosure.

Emergency operation by hand generator, above freeboard deck, closing only.

Locally there is an audible alarm (sounder) combined with a visual alarm (flash light). At the remote emergency station a visual indication (red/green lights) is present. The wheelhouse panel shows the location of the doors and is equipped with indication lights for open/close indication and alarm signaling incl. buzzer when main or control power supply is lost.